It seems that any of these discussions have to ultimately rely on the "a wizard did it" of SciFi: vacuum energy. I don't care what arcane mechanisms are used to describe *how* Superman or any other super-being have their powers, the basic problem of conservation of energy still exists. Some of the shiat Superman does would require several fusion reactors and even 100% conversion of photons from solar energy in his surface area couldn't account for even 1/100000000 of that.

imgod2u:Some of the shiat Superman does would require several fusion reactors.....

What always bugged me more was the things Superman manipulates don't respond the way they should. Even if you were strong enough to hold a building from the base and lift it into the air, the structure itself would collapse under it's own weight...or something to that effect.

They actually, surprisingly, sort of showed this in Superman Returns when he caught the airplane and it showed the fuselage buckling and he stopped it.

But it's like this. I'm strong enough to lift, say, a table size graham cracker. But the cracker would break either in my hands, or just past them, if I tried to actually lift and carry it across the room!

buntz:imgod2u: Some of the shiat Superman does would require several fusion reactors.....

What always bugged me more was the things Superman manipulates don't respond the way they should. Even if you were strong enough to hold a building from the base and lift it into the air, the structure itself would collapse under it's own weight...or something to that effect.

They actually, surprisingly, sort of showed this in Superman Returns when he caught the airplane and it showed the fuselage buckling and he stopped it.

But it's like this. I'm strong enough to lift, say, a table size graham cracker. But the cracker would break either in my hands, or just past them, if I tried to actually lift and carry it across the room!

I would love a table made of graham cracker.

They also showed this in the new movie with the structure giving into its own weight both under his feet and above his hands.

I've always liked the time travel origin of Superman. Even more so from the beautiful symmetry from Red Son. That the House of El is actually "Luthor". I wish it had been that way from the get go. Being the true "Man of Tomorrow". I just hate that Earth's mightiest and purest hero is not actually human.

If the problems up to fertilization can be overcome somehow, it seems like there shouldn't be much of a problem after that. Even if all of the Kryptonian genes are fully expressed and are dominant, superpowers are made possible by exposure to the sun. There's not much exposure to the sun in the womb. Maybe a little tiny bit in the case of direct sunlight on an exposed belly? So, a quality shirt, or even one made for the purpose to inhibit all light transmission, should do the trick. Of course, the baby might flip out and kill the doctor that smacks its rear end, but that's another matter. We'll let Supes do that for safety's sake.